Gage-socket



E. B. CROCKER.

GAGE SOCKET.

APPLICATION FILED JUNE 25, 1920.

1,376,860. Patented May 3,1921.

UNITE STATES PATENT *FieE.

EENEs'r B. GROCKEB, or srnnrrortn, CONNECTICUT, ASSIGNOR r0 MANNING, MAXWELL & MooEE, INo., or NEW YORK, N. Y., A CORPORATION or NEW E sEY.

GAGE-SOCKET.

Patented May 3, 1921.

Applicatio n filed. June 25, 1920. Serial No. 391,793.

taching the socket piece to the gage case.

The object of the invention is to provide a simple and inexpensive gage socket and construction which is strong and rigid and whereby the necessity: for employlng expensive' castings is avoided.

A further object of the invention isto provide a gage socket structure which permits the employment of plain stock and material, and wherein the socket piece is efliciently and rigidly held against lateral or rotative displacement.

A furtherobj ect of the invention is to pro-:

vide a socket. gage structure which permits the use of drawn or stamped out cases within which the gage elements are" to be carried. Other objects of the invention will appear more fully hereinafter.

The invention consists substantially in the construction, combination, location, and arrangement, all as will be more fully hereinafter set forth as shown in the accompanying drawing, and finally pointed out in the appended claims.

Referring to the drawing, Figure 1 is a face view of a gage case with the top cover plate removed therefrom showing the application thereto of a gage socket embodying and in accordance with my invention.

Fig. 2 is a view in section on a plane indicated by the line 2, 2, Fig 1, looking in the direction of the arrows. i

Fig. 3 is a view in section on the line 3, 3, Fig. 1, looking in the direction of the arrows. Fig. 4 is a view in section on the line l, 4, Fig. 3, looking in the direction of the arrows. Fig. 5 is a broken View in section on the line 5, 5, Fig. 2, looking in the direction of the arrows. I I I j Fig. 6 is a view showing plate 17 on the outside of the casing.

In carryingout my invention I employ a tion therewith.

into cup-shape, and within which the gage I movement is to be mounted. In the periph eral wall of the casing I form a rectangular opening indicated at 7 Figs. 2 and 4.

This opening extends from the edge of the casing toward, but not entirely to the full depth of the peripheral wall of the cup, leaving the boundary side edges 8 and bottom edge 9. The socket piece which I employ is made from plain stock material, such for example,'as Tobin bronze, steel, or other material, according to the'uses to which the gage is to' be puta'nd the character of the pressure medium to be employed in connec- .In practice I prefer to construct the shank 10 of this socket piece of polygonal shape in cross section. A convenientform isto employ a rectangular shaped socket piece as plain'stock commonly comes in that shape.

The stock material is cut oif to the required length to form a socket piece, and the end portion' thereof is exteriorly threaded as indicated at 11 for attachment to the pipe connections to the source of the pressure medium. kerf or slot 12 is out into the shank portion 10 of the socket piece at its inner end to afford means for receiving and anchoring the end of the Bourdon tube 13. A longitudinally extending passage '14 is formed through the socket piece to com.-

municate 'with the kerf 12 and with the Bo'urdon tube when anchored therein. 'An

annular groove 15 iscut in the shank portion 10' of the-sooketpiece, and this groove may be conveniently cut'at the same time that the screw threads 11 are applied to the socket piece; The depth of the annular groove 15 should be such as to permit the cylindrical portion 1 6 of the stock of the socket piece left by the annular groove to fit snugly between the edges 8 of therectangularopening 7 in the wall ofthe casing, permitting the boundary edges 8 of s'aidfopenmg to enter the annular slot 151on opposite sides of the socket piece and permitting'th'e boundary edge portion 9 of said opening to also enter the annular slot 15. By reason of the fact that the walls of the annular slot 15 lie in straight planes transverse to the longitudinal axis of the socket piece, whereas the peripheral wall of the cup-shaped case is'curved, it will be seen that it is necessary longitudinal or lateral displacement.

which I preferably stamp up out of sheet metal, and in which I form a polygonally shaped opening corresponding tothe cross sectional contour of the shank portion of the socket piece as indicated at 18, and which stamping is fitted upon the shank portion preferably with a snug fit. This stamping is shaped to conform to the curvature of the wall of the case 6 so as to fit thereagainst and to which the stamping may be secured in any suitable manner, as for instance, by

the screw studs 19. In practice the securing plate is placed on the inside of the case wall, and the ends of the securingscrews 19 are received through threaded openings which are stamped in the securing plate; I do not desire to, be limited, however, with respect to the location of the securing plate or stamping 17, as the same might be equally well located on the outside of the casing. While I have shown a socket piece of rectangular shape, it is also to be understood that my invention is not to be limited or restricted to this particular shape, although I find it convenient to employ a rectangularly shaped socket piece for the reason that stock material is easily obtainable inthe market having this shape.

It will be observed that the securing plate 17 mounted and attached as above described retains the socket piece elliciently against axial rotative displacement.

A structure of socket piece and the manner of its mounting in a gage case as shown and as above described not only secures great simplicity but alsori 'idity and sturdiness, and machining work is reduced to a minimum, thereby greatly lessening the cost of construction. Moreover, I am enabled to avoid the use of castings which are diflicult to make andexpensive to prepare and which greatly increase the cost of construction as well as the weight of the finished. gage. I am also enabled to employ gage cases which are drawn or stamped out of sheet metal, thereby reducing weight as well as expense of manufacture. I also avoid the necessity for machining the seating surfaces such as are ordinarily required in fitting socket pieces to cast metal gage cases.

Where the gages are required for use in connection with ammonia gases it is the common practice to employ .socketpieces made ofsteel instead of bronze and a socket structure and means for attaching the same embodying my invention lends itself to the use of steel socket pieces as the steel stock therefor is readily obtainable in the desired shape in the market and no castings are required. 7 v

Whatever may be the material employed for the socket piece it will be seen that I provide an. exceedingly simple, sturdy, rigid and economical mounting of the socket piece which secures strength and rigidity and greatly reduces the weight as well as the cost of manufacture.

, Having now set forth the objects and nature of my invention, and a construction its peripheral wall, of a socket piece fitting,

in said slotand having an annular groove lnto which the edges of said slot extend,

and a plate fitting over the socket piece and secured to the wall of the case.

3. In-a gage socket structure, the combination with a gage case having a slot in itsperipheral wall, of a socket piece having a shank portion of polygonal shape incross section to fit in said slot said polygonal shaped shank portion having an annular groove said slot extend.

4. In a gage socket structure, the combi nation with a gage case having a slot in its peripheral-wall, of a socket piece having a shank portion provided with one or more plane surfaces to fit in said slot, said shank portion having an annular groove to receive the bounding edges of said slot.

5. In a gage socket structure, the combination with a gage case having a slot in its peripheral wall, of a socket piece having a shank portion provided with one-or more into which the bounding edges of plane surfaces to fit in saidslot, said shank portion having an annular groove to receive the boundmg edges of sald slot, and an anchor plate engaging over sald shank portion and secured to the wall of the case.

6. In a gage socket structure, the combination with a gage case having a slot in its peripheral wall, of asocket piece havinga shank portion provided with one or more plane surfaces to fit in said slot, said shank portion having an annular groove to receive the bounding edges of said slot, and an anchor plate having an openingtherethrough conforming in outline to the shape of the shank portion of the socket piece, and means to secure said anchor plate to the wall of the case.

7 In a gage socket structure, the combination with a gage case having a circular wall, said wall having a slot formed therein,

in combination with a socket piece having an annular straight walled groove, said socket piece fitting in said slot and the edges of said slot received in said groove.

8. In a gage socket structure, the combination with a gage case having a circular wall, said wall having a slot formed therein, in combination with a socket piece having an annular straight walled gro0ve,-said socket lar wall, said wall having a slot formed V therein, in combination with a socket piece I having a shank portion formed wlth one or more straight side surfaces fitting in said slot, said shank portion having an annular groove, the boundingedges of said slot fitting in said groove.

10. In a gage socket structure, the combination with a gage case having a circular wall, said wall having a slot formed therein, in combination with a socket piece havlng a shank portion formed with one or more straight side surfaces fitting in said slot, said shank portion having an annular groove, the bounding edges of said slot fitting in said groove, and an anchor plate engaging said shank portion and secured to the wall of the case. 7 I

In testimony whereof I have hereunto set my hand on this 22nd day of June, A. D.

ERNEST B. CROCKER. 

